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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30835-e55edf4b45) Lines: 1881 2002 94.0 % Date: 2026-04-25 09:26:46 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	126
divRq	301
mulqq	1127
addRq	1302
mulRq	2387
divTp	3674
addsub_polmod	7210
ser_normalize	7658
quad_polmod_conj	18403
quad_polmod_norm	18403
div_scal_ser	19096
div_rfrac_scal	32435
div_polmod_same	37044
sqr_ser_part	113907
mul_gen_rfrac	161376
inv_polmod	189773
fix_rfrac	207018
Q_to_Fp	226838
div_rfrac_pol	260657
mul_ser_scal	323974
div_intmod_same	341556
gconj	390611
add_ser_scal	417278
sqr_polmod	419392
div_ser	875766
sub_intmod_same	1017835
div_scal_rfrac	1052294
div_rfrac	1187510
divpT	1204910
div_ser_scal	1543591
gdivgunextu	1583803
Qdivis	1762586
mul_polmod	2674945
divRc	2918853
mulcxmI	2985919
mul_intmod_same	2987735
add_rfrac	3017298
mul_polmod_scal	3219624
gsubsg	3270044
add_intmod_same	3411654
ser_add	4094149
addQp	4762997
mulTp	4985898
mulcxpowIs	5563907
quad_polmod_mul	5860265
pol2ser	6378555
div_T_scal	7293224
mul_self_scal	7663387
mul_rfrac	7910292
_serprec	8187500
mul_polmod_same	8532875
add_rfrac_scal	8823993
rfrac_denom_mul_scal	9852099
mul_rfrac_scal	10435532
mulcIR	11907642
divpp	13212683
gdivgs	13378389
addsub_polmod_scal	13458201
addsub_frac_i	14244035
div_scal_pol	14531955
setfrac	15142688
div_scal_T	15557271
mulcxI	15655304
mulpp	17505611
addsub_pp	19974479
divcR	23431170
mkpadic_mod	24594977
add_scal	29400924
conj_i	31556296
mulrfrac	38069534
ginv	38485498
gred_rfrac2	39475112
addsub_frac	40919093
Leading_is_neg	57629507
gred_rfrac_simple	57632623
gdivgu	61805785
utoi_sign	65156293
Qdivii	143083229
gmul2n	150442714
Qdiviu	151422266
transtype	154222045
mul_scal	198314371
divrunextu	213670462
gmulsg	244302667
gaddsg	270817281
mulcc	281718394
gmulug	283938451
addRc	310772638
mulRc	355177604
gdiv	455346660
gsqr	1343945963
gsub	2904862416
gadd	6257799177
gmul	8961257673

Generated by: LCOV version 1.16