Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - basemath - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30822-5d69697d32) Lines: 2553 2925 87.3 %
Date: 2026-04-17 09:24:44 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2070
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 4004
Flxq_pow_table_pre 4391
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6569
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8166
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9646
Flx_mulspec_mulii 10145
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12217
init_invlaplace 12514
Flx_halve 14026
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22301
Flxq_sqrtn 23094
Flx_invBarrett_Newton 23159
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25999
Flx_Laplace 27496
Flx_composedsum 27693
FlxV_composedsum 28993
Flx_mod_Xn1 31627
FlxV_Flc_mul 34482
Fl_Flxq_log 35572
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47244
Flv_inv_indir 52205
kron_pack_Flx_spec 53168
Flx_Newton 54390
Flx_invLaplace 54653
Flxn_div 56609
Flxn_div_pre 56632
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69413
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75988
Fl2_sqrtn_pre 76083
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86555
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97167
Flxq_order 97322
Flxq_autsum_pre 98573
FlxC_to_ZXC 104060
Flv_Flm_polint 104558
Flxq_autsum_sqr 104887
int_to_Flx_quart 107385
Flxn_expint 109543
Flx_fromNewton 109547
Flxq_autsum_mul 112088
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113896
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118994
Flx_extgcd_halfgcd 126086
Flx_is_smooth_squarefree 127093
Flx_invBarrett_basecase 134412
Flx_splitting 147951
Flx_Fl_sub 151684
Flv_invVandermonde 153445
Flx_invBarrett_pre 158871
Flx_inflate 160957
Flxq_log 164210
Flxq_matrix_pow_pre 170643
FlxV_to_Flm 171855
Fl2_inv_pre 197361
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210695
Flxn_recip 218095
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232116
FlxqC_red_pre 234855
get_Flxq_star 283432
Flx_mulspec_mulii_inflate 294051
Flxq_sumautsum_sqr 295218
FlxT_red 299796
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
FlxC_eval_powers_pre 325155
Flxq_inv 335786
Flx_addmulmul 359017
_Flxq_neg 366572
Flx_sqr 370354
_Flxq_add 389834
bounded_order 394019
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421306
Flx_integXn 423350
Flxq_norm 443248
Fl2_equal1 450027
Flx_to_int_halfspec 468590
Flxq_powu 488356
int_to_Flx_half 507058
Flxq_easylog 519443
Flxn_mulhigh 527700
Flx_blocks 527785
Flx_triple 551294
Flx_eval2BILspec 603305
Flx_divrem_Barrett 606155
FlxV_to_ZXV 609484
Flxq_auttrace_sqr 652327
Flx_diff1 660205
Flx_translate1 662877
Flxq_invsafe 669881
Flx_sqrspec_Kronecker 670346
_Fl2_pow 671820
Fl2_pow_pre 671845
Flx_translate1_basecase 674934
kron_pack_Flx_spec_half 688104
translate_basecase 688126
Flxq_auttrace_mul 779587
Flx_Flxq_eval 791434
Flxq_minpoly_pre 809788
Flv_roots_to_pol 841975
Flx_extgcd 857829
Flx_halfgcd_pre 873222
Flx_subspec 899715
Flx_divrem_Barrettspec 907203
Flxq_pow 933113
monomial_Flx 941350
Flx_mulhigh_i 950236
Flxq_auttrace_pre 960255
Flx_halfgcd_all_i 1088245
Flx_halfgcd_all_pre 1088255
Flx_halfres_basecase 1095319
Flx_halfres_i 1115291
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485478
_Flxq_red 1550928
Rg_to_F2 1715235
Flv_inv 1744744
Flv_producttree 1745960
Flxq_transmul_init 1746399
Flv_inv_i 1756748
Flx_Flv_multieval_tree 1786265
Flx_neg_inplace 1799550
Flx_red 1886350
_Fl2_mul 1923720
Flx_lgrenormalizespec 2136687
RgX_to_Flx 2209606
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2444799
FlvV_polint_tree 2587774
random_Flx 2646274
Flxq_sqr 2763469
FlxV_to_ZXV_inplace 3032475
Rg_to_Flxq 3461351
Flx_addshift 3768149
ZXT_to_FlxT 3799401
Flx_neg 4176787
Flx_negspec 4176789
Flxq_inv_pre 4183783
Flxq_transmul 4212356
Flx_val 4483079
Flx_resultant 4608731
Fl2_sqr_pre 4905114
_Fl2_sqr 4905229
Flx_mod_Xnm1 4908146
Flxn_mul_pre 5184332
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5326226
kron_unpack_Flx_bits_narrow 5628021
kron_unpack_Flx_bits_wide 5697776
Flx_extgcd_pre 6184023
Flx_extgcd_basecase 6184053
Flxn_red 6369031
zx_to_Flx 6412860
Flx_recipspec 7290692
Flx_addspec 7337710
Flx_mulspec_Kronecker 7373336
Z_to_Flx 7593798
maxbitcoeffpol 8478140
Flx_is_squarefree 9207454
Flx_Fl_mul 9423507
Flx_Fl_add 9846507
_Flx_mul 11778779
Flx_Fl_mul_to_monic 11860451
Flx_blocks_Flm 12970579
FlxV_to_Flm_lg 12971483
Flx_FlxqV_eval_pre 13170006
Flx_Frobenius_pre 13817593
Flx_resultant_basecase_pre 14473401
Flx_resultant_pre 14475905
Flx_get_red 14506799
Fl2_mul_pre 17092053
Flxq_mul 18079819
Flv_inv_pre_inplace 19303766
Flx_Fl_mul_pre 20198476
Flx_eval 20414386
kron_pack_Flx_spec_bits 21009652
Flv_inv_pre_indir 21043042
_Flxq_pow 21643049
Flxq_pow_Frobenius 21650459
Fl_to_Flx 21920472
_Flxq_one 22440576
Flxq_powers_pre 22441809
Flxq_pow_pre 22698964
Flx_deriv 22891114
_Flxq_powu_i 22932555
Flxq_powu_pre 24185294
Flx_equal 25472493
Flv_to_Flx 25490571
Flx_mul 26724111
Flx_shift 27402538
mkF2 27660128
Flx_valrem 28438405
Flx_divrem 30451009
Flx_gcd 35019911
Flx_to_ZX_inplace 36546289
Flx_div_by_X_x 36556089
Flx_to_ZX 38383696
Flx_rem 42209436
Flx_eval_powers_pre 48641646
Flx_divrem_basecase 61236097
Flx_normalize 64799856
Flx_to_Flv 66648760
set_Flxq_pre 68620911
Rg_to_Fl 73084989
Flx_add 73793321
Flx_divrem_pre 78668467
Flx_gcd_basecase 85780054
Flx_gcd_pre 87448442
Flx_get_red_pre 96371964
Fl2_norm_pre 97118605
Flx_eval_pre 136133730
Flx_sub 136566437
_Flxq_mul 145329969
ZX_to_Flx 171049900
Flxq_mul_pre 189759376
_Flxq_sqr 265793240
Flxq_sqr_pre 271984371
Flx_sqr_pre 272962072
Flx_sqrspec 273329914
Flx_sqrspec_basecase 273437274
Flx_mulspec_basecase 345013347
Flx_mul_pre 378954555
Flx_mulspec 384647321
Flx_shiftip 626777233
Flx_rem_basecase 794876334
Flx_rem_pre 920669497
get_Flx_red 983577533
Flx_mullimb 1186414608
Flx_renormalize 2158399337
get_Fl_threshold 2306846297
Flx_mullimb_ok 3321236044

Generated by: LCOV version 1.16