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 30651-3e52073f6d) Lines: 2553 2925 87.3 %
Date: 2026-01-28 09:23:10 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449660
Fl2_inv_pre 197205
Fl2_mul_pre 1952923
Fl2_norm_pre 127544
Fl2_pow_pre 671378
Fl2_sqr_pre 4910546
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76038
Fl_Flxq_log 35563
Fl_Xp1_powu 0
Fl_to_Flx 21947263
Flm_to_FlxV 2772
FlvV_polint_tree 2587323
Flv_Flm_polint 104561
Flv_inv 1744494
Flv_invVandermonde 153445
Flv_inv_i 1756508
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21087435
Flv_inv_pre_inplace 19349872
Flv_polint 1485219
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745691
Flv_roots_to_pol 842010
Flv_to_Flx 25487886
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325145
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26000
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 301858
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28976
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171886
FlxV_to_Flm_lg 12968617
FlxV_to_FlxX 397977
FlxV_to_ZXV 606837
FlxV_to_ZXV_inplace 3031558
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9845268
Flx_Fl_mul 7329871
Flx_Fl_mul_pre 18294384
Flx_Fl_mul_to_monic 11857417
Flx_Fl_sub 151680
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785999
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13167448
Flx_Flxq_eval 791302
Flx_Flxq_eval_pre 2444610
Flx_Frobenius 86618
Flx_Frobenius_pre 13813112
Flx_Laplace 27344
Flx_Newton 54089
Flx_add 66132586
Flx_addmulmul 416802
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 525839
Flx_blocks_Flm 12967981
Flx_composedprod 0
Flx_composedsum 27549
Flx_convol 0
Flx_deflate 420798
Flx_deriv 22981242
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36579196
Flx_divrem 30450872
Flx_divrem_Barrett 606698
Flx_divrem_Barrettspec 908210
Flx_divrem_basecase 62288678
Flx_divrem_pre 79733095
Flx_double 2443925
Flx_equal 26931032
Flx_eval 20428702
Flx_eval2BILspec 603291
Flx_eval_powers_pre 48608072
Flx_eval_pre 136184248
Flx_extgcd 856796
Flx_extgcd_basecase 6286372
Flx_extgcd_halfgcd 146649
Flx_extgcd_pre 6286374
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109398
Flx_gcd 35019312
Flx_gcd_basecase 85776638
Flx_gcd_pre 87441518
Flx_get_red 14503330
Flx_get_red_pre 97113432
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126839
Flx_halfgcd_all_pre 1126844
Flx_halfgcd_pre 873195
Flx_halfres_basecase 1133915
Flx_halfres_i 1153883
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 161537
Flx_integ 0
Flx_integXn 422721
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158852
Flx_invLaplace 54352
Flx_is_l_pow 8183
Flx_is_smooth 74256
Flx_is_smooth_pre 118653
Flx_is_smooth_squarefree 126842
Flx_is_squarefree 9180953
Flx_lgrenormalizespec 2138632
Flx_matFrobenius 0
Flx_matFrobenius_pre 86568
Flx_mod_Xn1 31510
Flx_mod_Xnm1 4906631
Flx_mul 27811516
Flx_mul_pre 379377960
Flx_mulhigh_i 947532
Flx_mullimb 1185831482
Flx_mullimb_ok 3374877167
Flx_mulspec 384972850
Flx_mulspec_Kronecker 7360877
Flx_mulspec_basecase 347231288
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10142
Flx_mulspec_mulii_inflate 294044
Flx_mulspec_quartmulii 97166
Flx_neg 3266244
Flx_neg_inplace 1780025
Flx_negspec 3266232
Flx_normalize 64822569
Flx_powu 0
Flx_powu_pre 4035
Flx_recip 0
Flx_recipspec 7292577
Flx_red 1886814
Flx_rem 42230997
Flx_rem_basecase 798702049
Flx_rem_pre 922773979
Flx_renormalize 2152156529
Flx_rescale 1117
Flx_resultant 4731778
Flx_resultant_basecase_pre 14597453
Flx_resultant_pre 14599310
Flx_shift 27396864
Flx_shiftip 631858018
Flx_splitting 148181
Flx_sqr 354826
Flx_sqr_pre 276091289
Flx_sqrspec 276198806
Flx_sqrspec_Kronecker 695242
Flx_sqrspec_basecase 275496201
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2063
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138654452
Flx_subspec 900672
Flx_to_Flv 66647769
Flx_to_FlxX 71405
Flx_to_ZX 38300678
Flx_to_ZX_inplace 36575833
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4477129
Flx_valrem 28480938
Flxn_div 56332
Flxn_div_pre 56351
Flxn_exp 0
Flxn_expint 109396
Flxn_inv 1037
Flxn_mul 75839
Flxn_mul_pre 5177672
Flxn_mulhigh 525790
Flxn_recip 217287
Flxn_red 6358025
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69450
Flxq_autpow_sqr 47315
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112480
Flxq_autsum_pre 98770
Flxq_autsum_sqr 105116
Flxq_auttrace 0
Flxq_auttrace_mul 780093
Flxq_auttrace_pre 959955
Flxq_auttrace_sqr 652794
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519393
Flxq_inv 335769
Flxq_inv_pre 4286542
Flxq_invsafe 670492
Flxq_invsafe_pre 5429599
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170665
Flxq_minpoly 45937
Flxq_minpoly_pre 809714
Flxq_mul 13192568
Flxq_mul_pre 188027834
Flxq_norm 443132
Flxq_order 97328
Flxq_pow 948310
Flxq_pow_Frobenius 22379425
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23442866
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232008
Flxq_powers_pre 22437417
Flxq_powu 488337
Flxq_powu_pre 24180989
Flxq_sqr 2763156
Flxq_sqr_pre 275109904
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212674
Flxq_transmul_init 1746362
RgXV_to_FlxV 7
RgX_to_Flx 2249935
Rg_to_F2 1710312
Rg_to_Fl 73210285
Rg_to_Flxq 3588182
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3815043
ZXV_to_FlxV 0
ZX_to_Flx 171004859
Z_mod2BIL_Flx 305858
Z_mod2BIL_Flx_2 308788
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556738
ZpX_invLaplace_init 497
_Fl2_mul 1923873
_Fl2_pow 671372
_Fl2_rand 113814
_Fl2_sqr 4910575
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11776937
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146820406
_Flxq_neg 366572
_Flxq_one 22436737
_Flxq_pow 22372014
_Flxq_powu 68
_Flxq_powu_i 22925768
_Flxq_rand 6563
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267250450
bounded_order 395385
gener_Flxq 7201
get_Fl_threshold 2325672988
get_Flx_red 986797429
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12211
int_to_Flx_half 507058
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21009495
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5669866
kron_unpack_Flx_bits_wide 5668558
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8489324
mkF2 7323652
monomial_Flx 941270
random_Flx 2646040
set_Flxq 68922
set_Flxq_pre 69360855
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6412927

Generated by: LCOV version 1.16