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 - RgX.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30418-83092bf331) Lines: 1630 1786 91.3 %
Date: 2025-07-29 09:22:49 Functions: 205 223 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
RgXQX_mul 0
RgXQX_powers 0
RgXQX_sqr 0
RgXV_prod 0
RgX_RgXQV_eval 0
RgX_RgXn_eval 0
RgX_Rg_eval_bk 0
RgX_Rg_translate_FpX 0
RgX_sqrhigh_i 0
RgX_sqrhigh_i2 0
RgXn_exp 0
RgXn_inv_FpXQX 0
RgXn_powu 0
RgXn_sqr_basecase 0
_RgX_mul 0
_gen_sub 0
_sub 0
_zeroXn 0
RgX_Rg_translate_FpXQX 7
RgXn_div_FpXQX 7
RgXn_sqrt 7
RgXn_sqrhigh 14
RgXQX_RgXQ_mul 35
RgX_rem_FpXQX 70
RgXn_inv_FpX 91
RgXn_div_FpX 119
RgXQV_RgXQ_mul 133
rfrac_deflate 140
rfrac_deflate_max 140
rfrac_deflate_order 140
RgXn_reverse 154
RgX_sqr_FpXQX 196
RgXn_sqr2 315
RgXQM_mul 322
RgXX_to_RgM 322
QXY_QXQ_evalx 371
RgXQ_trace 476
RgXnV_red_shallow 483
RgXn_powers 483
RgXV_maxdegree 588
zero_FpXQX_mod 616
RgX_RgXnV_eval 966
_zero 1232
RgX_homogenize_deg 1260
ZX_unscale_divpow 1393
RgX_sqr_FpX 1407
RgXQV_red 1414
QXQX_homogenous_evalpow 1652
_oneXn 1939
RgXY_swap 2051
RgX_mul_FpXQX 2079
RgXn_powu_i 2286
RgXV_rescale 2401
RgX_divs 2667
RgXQ_norm 2680
RgXQ_matrix_pow 2940
RgXV_RgV_eval 2947
RgX_digits 3157
QXV_QXQ_eval 3241
do_QXQ_eval 3612
RgXY_derivx 3836
RgX_muls 3992
_mulXn 4528
RgXn_eval 5187
RgXV_unscale 6559
QXQM_to_mod_shallow 6720
RgXQV_factorback 7118
RgM_to_RgXV_reverse 7202
QX_ZXQV_eval 7595
RgXQ_powers 8596
QXQ_powers 9590
_RgX_divrem 11333
RgX_pseudodivrem 11818
_sqrXn 11893
RgXQX_pseudodivrem 12063
ZXQ_powers 12145
RgXn_sqr 12152
QXQXV_to_mod 12733
ZX_unscale_div 12997
RgXQM_red 13195
RgX_sqr_QXQX 13425
QXQC_to_mod_shallow 14854
ZXQX_dvd 17734
RgX_homogenize 18732
QXQV_to_mod 22342
RgM_to_RgXX 23686
_gen_zero 24184
RgX_affine 30212
RgX_recip 31388
RgXY_swapspec 32767
RgXQX_RgXQ_translate 33584
QXQX_to_mod 37471
RgX_sqr_i 37961
RgX_sqrspec_basecase 38000
RgX_sqrspec 38039
RgX_normalize 39158
RgX_splitting 43631
RgX_rem_QXQX 49851
RgX_unscale 51885
RgXn_expint 52918
RgX_integXn 56374
RgX_recip_shallow 59388
RgX_Rg_add_shallow 65105
RgX_mul2n 65268
RgXQC_red 68187
RgX_rem_FpX 68327
_sqr 74879
RgXV_to_RgM 79032
_pow 88307
RgX_sqrspec_basecase_limb 100082
RgXQ_pow 102160
zero_FpX_mod 102627
_ZXQmul 111196
RgXQ_powu 120493
RgXQX_pseudorem 138872
RgX_pseudorem 138872
RgXQX_divrem 156857
RgX_RgV_eval 166768
ZXQ_powu 168508
QXQ_to_mod 169946
RgX_mul_QXQX 170888
Kronecker_to_mod 185965
RgV_to_RgX_reverse 188283
_ZXQsqr 200609
QXQX_to_mod_shallow 204096
RgX_addspec 222294
RgX_div_by_X_x 265416
_mul 280998
get_Rg_algebra 282222
RgM_to_RgXV 303228
RgX_rotate_shallow 317037
RgV_to_RgM 336697
RgX_homogenous_evalpow 398510
RgX_RgXQ_eval 417519
RgX_liftred 454903
RgXQX_red 508139
_gen_cmul 512818
RgX_addmulXn 514764
RgXn_div 584450
_gen_sqr 593275
RgX_mul_FpX 609812
_add 623394
RgXn_recip_shallow 643020
_red 724301
RgXn_inv 807481
RgX_deriv 830512
QXQ_to_mod_shallow 840695
RgX_valrem_inexact 852252
gen_bkeval 868848
RgX_inflate 885467
RgXn_inv_fast 905089
RgXn_inv_i 905089
ZX_unscale 1013197
_one 1019731
_cmul 1040663
rem 1050980
ZX_unscale2n 1113388
RgX_deflate 1181403
RgX_Rg_sub 1226066
RgXn_div_fast 1284113
RgXn_div_i 1284113
RgX_sqr 1298217
RgX_sqr_fast 1310368
Rg_to_RgC 1360772
ZX_z_unscale 1510544
RgX_shift 1578036
RgX_mulhigh_i2 1589510
RgX_mul_normalized 1719205
_gen_mul 1844473
RgXY_degreex 2022582
_gen_nored 2033213
_gen_one 2074611
RgXn_div_gen 2188985
RgV_to_RgX 2288995
RgX_recipspec_shallow 2583805
RgXn_mulhigh 2614799
RgX_mulhigh_i 2671187
RgX_blocks 2788484
RgX_mulXn 2997279
RgX_val 3667905
RgX_recip_i 3750651
RgX_rescale 4343479
Rg_RgX_sub 4953317
RgX_Rg_divexact 5262619
RgX_Rg_translate_basecase 5702410
RgX_Rg_translate_i 5702599
RgX_Rg_translate_fast 6064167
RgX_Rg_translate 6064169
RgXn_mul_basecase 6633454
Rg_get_0 6942982
RgX_neg 7450859
RgX_renormalize_lg 7886627
RgXn_red_shallow 7944227
RgX_addspec_shallow 8850615
RgXn_mul2 9420016
RgX_addmulXn_shallow 9526046
RgXn_mul 11067681
gen_bkeval_powers 12108975
gen_RgXQ_eval_powers 13907593
RgX_divrem 14179930
RgX_rem_fast 14698014
RgX_rem 14698025
RgX_to_RgC 15063416
_gen_add 19260614
brent_kung_optpow 19592791
RgX_divrem_i 23429472
RgX_equal 24796854
RgX_Rg_div 30725253
RgX_mulspec_basecase 34204149
RgX_mul_i 38834084
RgX_mulspec 40270395
RgX_Rg_add 42742402
RgX_even_odd 49758787
RgX_sub 72827762
RgX_valrem 80736163
RgXspec_kill0 81713073
RgX_mul 105462226
RgX_mulspec_basecase_limb 111252639
RgX_mul_fast 119201083
RgX_add 143401365
Rg_get_1 156955782
RgX_shift_shallow 177359603
RgX_Rg_mul 199417330

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