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 30861-40e9da58f9) Lines: 2553 2925 87.3 %
Date: 2026-05-04 09:27:01 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 135
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 504
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2067
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 3889
Flx_powu_pre 3972
Flxq_pow_table_pre 4393
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6574
Flx_FlxM_qmul 7107
gener_Flxq 7201
FlxM_mul2 7279
Flx_is_l_pow 8167
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10129
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12215
init_invlaplace 12521
Flx_halve 14026
Flx_halfres_split 20166
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21915
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23109
Flx_invBarrett_Newton 23251
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26382
Flx_Laplace 27493
Flx_composedsum 27710
FlxV_composedsum 28996
Flx_mod_Xn1 31633
FlxV_Flc_mul 34482
Fl_Flxq_log 35562
Flxq_sqrtl_spec_pre 37674
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45944
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47278
Flv_inv_indir 52216
kron_pack_Flx_spec 53168
Flx_Newton 54386
Flx_invLaplace 54657
Flxn_div 56644
Flxn_div_pre 56660
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69429
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75974
Fl2_sqrtn_pre 76066
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86557
Flx_Frobenius 86616
Flxq_order 97322
Flxq_autsum_pre 98579
Flx_mulspec_quartmulii 98877
FlxC_to_ZXC 104060
Flv_Flm_polint 104561
Flxq_autsum_sqr 104900
int_to_Flx_quart 109100
Flxn_expint 109545
Flx_fromNewton 109552
Flxq_autsum_mul 112115
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113850
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118632
Flx_extgcd_halfgcd 126130
Flx_is_smooth_squarefree 126843
Flx_invBarrett_basecase 134453
Flx_splitting 147726
Flx_Fl_sub 151826
Flv_invVandermonde 153445
Flx_invBarrett_pre 159004
Flx_inflate 160693
Flxq_log 164217
Flxq_matrix_pow_pre 170646
FlxV_to_Flm 171869
Fl2_inv_pre 197191
Flx_to_int_quartspec 207973
Flxq_sumautsum_pre 210702
Flxn_recip 218115
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232119
FlxqC_red_pre 234855
get_Flxq_star 283454
Flx_mulspec_mulii_inflate 294065
Flxq_sumautsum_sqr 295253
FlxT_red 297712
Z_mod2BIL_Flx 305879
Z_mod2BIL_Flx_2 308809
FlxC_eval_powers_pre 325160
Flxq_inv 335787
Flx_addmulmul 360114
_Flxq_neg 366572
Flx_sqr 370314
_Flxq_add 389834
bounded_order 394027
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421307
Flx_integXn 423449
Flxq_norm 443244
Fl2_equal1 449763
Flx_to_int_halfspec 468589
Flxq_powu 488487
int_to_Flx_half 507058
Flxq_easylog 519470
Flxn_mulhigh 527866
Flx_blocks 527913
Flx_triple 551294
Flx_eval2BILspec 603333
FlxV_to_ZXV 610608
Flx_divrem_Barrett 610840
Flxq_auttrace_sqr 652589
Flx_diff1 660702
Flx_translate1 663370
Flxq_invsafe 670700
_Fl2_pow 671501
Fl2_pow_pre 671512
Flx_sqrspec_Kronecker 672094
Flx_translate1_basecase 675458
kron_pack_Flx_spec_half 688104
translate_basecase 688622
Flxq_auttrace_mul 779806
Flx_Flxq_eval 791492
Flxq_minpoly_pre 809817
Flv_roots_to_pol 842111
Flx_extgcd 859516
Flx_halfgcd_pre 873402
Flx_subspec 905218
Flx_divrem_Barrettspec 912686
Flxq_pow 933245
monomial_Flx 941532
Flx_mulhigh_i 950417
Flxq_auttrace_pre 960682
Flx_halfgcd_all_i 1088434
Flx_halfgcd_all_pre 1088434
Flx_halfres_basecase 1095690
Flx_halfres_i 1115860
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485474
_Flxq_red 1550928
Rg_to_F2 1715194
Flv_inv 1744759
Flv_producttree 1745962
Flxq_transmul_init 1746780
Flv_inv_i 1756775
Flx_Flv_multieval_tree 1786269
Flx_neg_inplace 1799912
Flx_red 1884529
_Fl2_mul 1924392
Flx_lgrenormalizespec 2150445
RgX_to_Flx 2210271
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2444997
FlvV_polint_tree 2587825
random_Flx 2646955
Flxq_sqr 2763491
FlxV_to_ZXV_inplace 3034434
Rg_to_Flxq 3465640
Flx_addshift 3768888
ZXT_to_FlxT 3799329
Flx_negspec 4176617
Flx_neg 4176622
Flxq_inv_pre 4183870
Flxq_transmul 4213410
Flx_val 4464114
Flx_resultant 4610052
Flx_mod_Xnm1 4907865
_Fl2_sqr 4912203
Fl2_sqr_pre 4912235
Flxn_mul_pre 5185881
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5334778
kron_unpack_Flx_bits_narrow 5644771
kron_unpack_Flx_bits_wide 5699412
Flx_extgcd_basecase 6194270
Flx_extgcd_pre 6194272
Flxn_red 6371009
zx_to_Flx 6396253
Flx_recipspec 7303720
Flx_addspec 7339173
Flx_mulspec_Kronecker 7389617
Z_to_Flx 7610089
maxbitcoeffpol 8497205
Flx_is_squarefree 9221185
Flx_Fl_mul 9424297
Flx_Fl_add 9846962
_Flx_mul 11783877
Flx_Fl_mul_to_monic 11865127
Flx_blocks_Flm 12973570
FlxV_to_Flm_lg 12974139
Flx_FlxqV_eval_pre 13172919
Flx_Frobenius_pre 13828140
Flx_resultant_basecase_pre 14476546
Flx_resultant_pre 14478534
Flx_get_red 14517673
Fl2_mul_pre 17092748
Flxq_mul 18080034
Flv_inv_pre_inplace 19373890
Flx_Fl_mul_pre 20217052
Flx_eval 20417246
kron_pack_Flx_spec_bits 21044446
Flv_inv_pre_indir 21107541
Fl_to_Flx 21950417
_Flxq_one 22459229
Flxq_powers_pre 22459693
_Flxq_pow 22874799
Flxq_pow_Frobenius 22882206
Flx_deriv 22906093
_Flxq_powu_i 22942490
Flxq_pow_pre 23930881
Flxq_powu_pre 24196922
Flv_to_Flx 25497410
Flx_equal 26704479
Flx_mul 26767048
Flx_shift 27411047
mkF2 27669478
Flx_valrem 28472436
Flx_divrem 30473008
Flx_gcd 35062346
Flx_div_by_X_x 36583646
Flx_to_ZX_inplace 36586654
Flx_to_ZX 38412626
Flx_rem 42231267
Flx_eval_powers_pre 48491250
Flx_divrem_basecase 61309436
Flx_normalize 64825162
Flx_to_Flv 66677583
set_Flxq_pre 69884831
Rg_to_Fl 73089448
Flx_add 73825232
Flx_divrem_pre 78752202
Flx_gcd_basecase 85867117
Flx_gcd_pre 87530794
Fl2_norm_pre 97118540
Flx_get_red_pre 97648885
Flx_eval_pre 136178364
Flx_sub 136781113
_Flxq_mul 147912432
ZX_to_Flx 171180220
Flxq_mul_pre 192438245
_Flxq_sqr 267719676
Flxq_sqr_pre 274046987
Flx_sqrspec_basecase 274389607
Flx_sqr_pre 275025822
Flx_sqrspec 275135398
Flx_mulspec_basecase 347719996
Flx_mul_pre 382035666
Flx_mulspec 387679958
Flx_shiftip 631039201
Flx_rem_basecase 799172795
Flx_rem_pre 925347830
get_Flx_red 988375492
Flx_mullimb 1185399945
Flx_renormalize 2167537429
get_Fl_threshold 2323403255
Flx_mullimb_ok 3365462810

Generated by: LCOV version 1.16